Attack of Opportunity is an ability exclusive to Artifice-based heroes (Cultist, Elf, and Rogue).
Description[]
Game mechanics[]
Every time that you land a non-spell attack, this ability gives you X% chance to deal X% additional damage, where X is the hero's Artifice. Thus, this ability becomes progressively more effective with higher Artifice. The additional damage continues to increase if Artifice is increased above 100. Attack of Opportunity triggers only if the base attack inflicts actual damage. Therefore, it does not trigger if the base attack is entirely absorbed by the opponent's armor.
| Artifice | Chance to use | Damage increased by | Total damage bonus |
|---|---|---|---|
| 20 | 20% | 20% | 4% |
| 40 | 40% | 40% | 16% |
| 60 | 60% | 60% | 36% |
| 80 | 80% | 80% | 64% |
| 100 | 100% | 100% | 100% |
| 120 | 100% | 120% | 120% |
As shown above, the total damage bonuses increases quadratically with Artifice up to 100 Artifice. Afterwards, the damage bonus scales linearly with Artifice.
Attack of Opportunity can be used in conjunction with other physical attack abilities, including Double Attack, Triple Strike, and Attack Multiple Foes. For example, an Elf with Triple Strike (from the Grandbow of Speed) can inflict 3 base attacks and 3 attacks of opportunity on a single target in a single combat round. Attacks performed with the Dagger Storm ability (from the Cultist's Baldric of Feathers) also qualify for Attack of Opportunity.